these don't need to be SAL_CALL, and the function pointer definition was
not annotated SAL_CALL either

Change-Id: I3082d3d34c53dc723ad8d2083010fd0de0e89a1e
Reviewed-on: https://gerrit.libreoffice.org/46067Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Noel Grandin <noel.grandin@collabora.co.uk>